Envelop-machine.



T. W. KIENAST. ENVELOP MACHINE. APPLICATION ULEB SEPTA 6,1912.

ILL 13,@19.

Patented 001;. 6, 1914.

WLM/Lewes T. W. KIENAST, ENVELOP MACHINE. MPLIGMION FILED SEPT. o, ma.

T. W. KIBNAST.

ENVBLUP MACHINE.

APPLIOATLON FILED SBP-1'. 6,1912.

Patented Oct. 8, 1914.

IIIIIIHIHIHI] IHIIIHIIIIHI Il iill lillil 'I'. W. KIENAST.

ENVELOP MACHINE.

n l APPLICATION FILED SIFPI.G,19`L2. 19 l 139D@ @u Fatented Oeh. 1914.

T. W. KIBNAST. BNVELOP MACHINE.

APPLICATION' FILED SEPT. 6,1912. l; j 13,@1 9, Patented Oct. 6, 1914.

l2 SHEE'I'S- SHEET 5.

m @3913/1411 @l Mummia/9@ T. W. KIENAST.

ENVBLOP MACHINE.

APPLIUATION FILED SEPT. 6, 1912.

.Patented Oct. 6, 1914.

12 SHEETS--SHEET 6.

www0/aoco JJ /4A T. W. KIENAST.

ENVELP MACHINE.

APPLIUATION FILED SEPT. 6.1912.

Patented Oct. 6, 1914.

12 SHEETS-SPI lll'l 7.

Wwf/www i T. W. KENAST.

.ENVBLOP MACHINE.

APPLIOATION FILED SEPT. 6,1912,

Patented 001). 6, 1914.

12 SHEETS-ahum s.

Ulli

HHIII IH T. W. KIBNAST. ENVELOP MACHINE.

APPLICATION FILED SEPT. 6,1912.

Patented Det. 6, 1914.

12 SHEETS-SHEET 10.

QQ mw w m [IVIIHHH l!! I /M L V ro VWM# llil 0 @Y .QN Kw@ T. W. KIBNAST.

ENvELoP MACHINE.

APPLICATION FILED SL Patented Oct. 6, 1914.

` 10 snm1ssnm.1 11

T. W. KIENAST.

ENVELOP MACHINE.

APPLIUATION FILED SEPT. 6,1912.

l l l 3,01 9., Patented 00u. 6, 1914,

jlaiiiril than would be poersihle allier ill WILLIAM KENILST, 0F NEVI YORK, N. COMPLNY, 03F NEW' YRK, '-"T 'marmer-MACHINE.

y Epeeiieatiou of Letters latent.

f atemited Get. 6, 1914.

application filed September Q 1912. Serial No.. 718,924.

oiigjh ol" lilauhattau, eityi county,

oij New feriq, have invented eerand ueel'al lu'ifn'ovemeuie iu .ltxr

iai u .new

.velivip-riariiiur-s. of which the following.; is a full ami ele-ar speeii itiori.

'M invention to envelop iufm-.limes roiiiprifws ria mir improved mechanisms iirablr i'o eiii-rlo'i umeliiilee in general. herein v`ioivii as designed more particu- L`rify i'or use iii the rotary lypr oi envelop .mairi'iihe elufh as Het forth for example iu iov prior il iii. l"`a1'eut` No.` lizfail, ggg'rauted i A ie'mber lili? 'i'.llli,

lior the 'purposeoif faeiliatirig the :Formaiziou oi"l side swims by alle edge folding; der in envelop mailfhihes. il'- has heretofore ilfreqiieiitly be u lfhe 'practice io prelimimirily isii'ore he bla ai' "web ou the seam leiding;v liiiils. The seoriujA` hovvewr. hize` the .serious dieadvairiagge ol" wealieiiiiii ihe palier ai. the seam.

la oriier o obtain an aeooraie 'i'olilioii' lili, aud io 'faeiiiiaie the iorioaioii ol: the side seams, my invention romprises as one oi iis features a preliu'iinary web c-,ieasiogr mechanism by vvhieh the ede'es el thejveb. holo-e il` is; out loto blanks. are turned over and prfased doive llall to form ore: s along' ilse i'ohliuirr lilies. 'The e'ilert ol" thi operariou io gain the advanta ol the previously mployed. scoring uieehaoimu while aly the same lime avoiding` the disadvanageous l'ealue above noted. Ylv preler lio perform this operationbefore the web is severed imo blanks. as iu this way the' 'lohiiiia lio," is thus morer aroiiriilely main izhe blaiils are severed.

.iiiaemaeh as lhe edges oi' the web are to he flubsequeiily subjected io vulling operalh'm, my iiiveiitieii i'urtl'ier iaaiprises a l ifer ol'ieuiug the fold illus y so that the web is i'iisl'orted io its nal oi'ieii rendition bul siill relaiuiair lhe eieased .folding line. Y luoizhei .iieaiur' Lhe mittag; meelrL m by whioh ehipe are loved from the ev'. L.) i oi the web. lo eut-A tifog; merhani'ms sueh as shown in my above meiieioiief'l limited States patent, wherein a 'cai-ier mirador having an irregular enti-lng edife "werijeepouding in contour xfida the out ol' my invention reiaies line to be cui and pressure' rollers which i'orce the edge ol the web agamst the eut- Lirfieu oi' the United States, residing?v in i ting edges olf the eyliiide,l are employed, the

devices, and certain' adjustments and mountingi's :for f'he Chip removalyrollers.

.lo the blaul; severing operation as performed iii enveli'ip maehiuesof the type reierred to, iihe eut is usually made on a transverse V-shaped line, and the V-shaped end o'i" the lil-ani; is usually subjected to an end brimming' operation which elips oil' the eorz'iers. The blank severing rolls are provided with traheverse ereasei.' bladesI which `lorm the creases at the top and bottom of the liriishedei'ivelop, one of the ereaser blades serving; as the :Feed device hy which the advance end ol the blank is moved. into Aehe end trimme* and the blank subsemieotly withdrawn :md doubled upou itself along;l the creased line and delivered to the sea m i'oldin Y meehauism. lo Athis operation the ereaser blade gfriiis the blank line at a line near the middle ol 1the blaiili', so that the advance end oil ille blank is otherwise free, and where paper oli' light flexible texture is employed it` is sometimes diilieult to adi ance the lreed end io the end lliinmler. To avoid'this` dii'iieulty my invention further comprises azi improved reciprocating guide plate which is caused to move toward the Oud liriliimer simultaurously with the movemimi, oli the paper, but preferably at a somewhat higher Speed, whereby the movement of the free oud ol the blank assisted.

Other frana-w1 oi my invention will be apuareuiz from a detailed deselipiioii ol'an embodiiiieoi. thereof. which is shown .iii the arcoiiipaoyiua draivhia.

ln. ihe iz-reeoiii. abolir-ation i have rlaimed only the lire: .I'eallire ol my inveuiion referred io above` involving the prrliiiiiuary creasing merhaiiiiaa.

lfigrure i is a :eide elevation of portions of au envelop marbiov elu'nviug the relation of Lhe eeveral 'imehaiiisms ronii'mplated by my invention. Fig'. 2 is a transverse ecliiooal elevation on the line M2-42 Ii, sl'iouing l anism for turning over the edges oi the web preliminarily to the creasing' operation. Fig. el is a longitudinal sectional elevation on the line 4--/i, Fig. 3, showing the same parts. Fig. 5 is a detail elevation of the preliminary web creasing rollers as viewed from the rear of the machine. Fig. 6 is a side elevation of the cutter cylinder,-show ing the relation of the Waste or `chip freeing and removing members. Fig, 7 is' a detail plan ot the end of the cutter cylinder, partially in section, showing the niountinp,` of the chipifreeing?,r lever and the trip nger which engages and guides the same. Fic. 8 is an end elevation of the same with the chip removal rollers showing the chip freeing` device in the act of directing the chip to the removal rollers. Fig. 9 isa central vertical section through the adjustable snpport for the pressure rollers which coperate with the cutter cylinder in cutting out Fig. 10 is a detail view in side elevationv showing the mounting of the chip removal rollers. Fig. 11 is a detail plan view oi one side ot' the adjustable anda'eu the chip.

silient support Jfor the chip removal rollers.

Fig'. 12 is a detail elevation showing the preliminary web folding mechanism and its adjustable mounting, viewed from the front 'of the machine. Fig'. 13 is an underneath plan view of the preliminary folder bar.

Fig. 111 is a detail view of the sleeve member `l'or holding` the preliminary web folding' blades. Fig. 15 is a side elevation, the side frame othe machine being removed, showing the blank severing and vtransverse creasinp; rolls and the end trimmer With its reciprocating guide plate. Fig. 16 is a top plan view of the. same viewed from the rear of the machine. Fig. 17 is a similar view of the reciprocatine` guide plate in advanced position. Fig'. 1S ,is a vertical longitudinal section through the end trimmer and guide plate. Fig'. 19 is a detail plan view of the slotted top plate upon which the guide plate reciprocatcs. Fig. 2O is a side elevation of the cam which operates the reciprocating guide plate. Fig. 21 is a rear elevation of the end trimmer in elevated position. Fig. 22 a front elevation of the sameand Fig. 23 is a central cross section ot' the knife support thereof. Fig. Q-i is a top plan View, and F'fg. Q5 an underneath plan view of a iioldinp mechanism, which may be employed in the machine.

Referring now more specifically to said drawings, it will be seen that the main 'frame of the machina as shown in Fig'. y1, com-y prisesv uprights 1 and 2 at the front and rea of the machine, respectively, and two4 side frames 3` which rest upon the uprigbts 1 and 2. Sui'tably secured` upon the front of the uprights 1 are the supporting.,lr brackets 1i, which comprise open journal bearings 5 for the reception of the shaft 6 of the roll of paper A pair of arms 8 are pivoted in brackets 9 also on the front of the up rights 1, and have journaled in them idle rollers 10 and l1, the latter being` flanged to provide a lateral guide :tor the paper roll 7 and the former being of any suitable construction, for serving as a guide for the web 12, drawn from the paper roll 7. The guide device thus comprised, rests by gravity upon the upper portion of thev paper roll 7.

r'he side frames 3 are preferably cast, with vertical supports 13 and 1li at the forward portions, and with top flanges 15 and 1G upon which are mounted side frames 17 oi? the printing mechanism. The particular construction of the printing mechanism does not constitute part of my present invention but is shown diagrainmatically as comprising a central impression cylinder 18 and two iorm rolls 19 and 20, suitably mounted upon the forward portions oit' frame 17. Side trames 21, having openjournal bearings 22 and Q3, are mounted upon the printer -frames 17 and bear the guide rolls 2i and 25, respectively, the former of which receives the web from the above mentioned guide roll 10 and the latter oit which directs it to the central impression cylinder 18 ot the printer. The web passes under the impression cylinder 18, wher-oit receives the impression from the form rolls 19 and 2() when the printing` operation is desired to be e'li'ected.

After the web has been subjected to the printing operation it is passed'through the preliminary web creasing` device which forms thc preliminary crease along` each 'side of the web vfor facilitating:r the subsequent seam forming operation. Upon the rear portions of the printer frames 17 are mounted side trames 2G of the j ncliminary web creascr mechanism. The Jforward por tions of the side frames 2G are provided with open journaled bearings Q7 for the rcception ol" a guide roller Q8 which receives the` web from the central impression cylinder 18. The rear portions of the side frames 2G are provided with open journaled bearings 29 and 3() which bear the shouldered shafts 31 and 32 upon which are adjustably positioncd Athe web creasing roller fl and the web creasing disks or rollers ivi-l secured by set screws 35 and 36. The creasing; roller 33 is centrally positioned upon its shaft 3l whereas creasing disks or rollers 34 are adjusted to ard and away Vfrom the medial line ot' the machine to correspond with the width of the web upon which the creasing operation is effected.

Disposed between the guide rollerl 28 above referred to and .the web creasing rollico ers and Bei: is the mechanism for turning over the edges ot' the web preparatory to the formation of the creases by the creasing rollers. To support these edge turning devices sockets 67 are formed on the sides of the side frames 26, and in these the frames 3S are mounted and secured in place by set screws 3l). and l2) have mounted in them cross rods or bars l() and 'll. position by set screws or bolts 42, 'While rod al is clamped by the tightening screws lil which draw together the split upper ends of the trame- The rod ell has secured yto it a split ring lfl which has a lower projection lo bearing the folder bar 4l@ shown in detail in liigs. and 1,3, its rear edge being rounded ott' at the ends 47. A positioning ring -lS may be secured to the rod il to niark the central position, so that when a folder bar -lf'i of diii'erent size to be substituted to adapt the iilevice to different sizes ot' enveli ps. the relative position of the folder bar and the edge turning devices to be derr-ribed may be maintained. ln removing he 'liolder bar 4G the tightening screw ett) which draws together the upper-ends of the split ring loosened so that the spliti'ing treed from the rod. Mounted upon the rod tl at either side et' the folder bar mounting` is a split ring which is 4secured by tightening screw A lower extension fr? from thc split ring 50 is in the form of a second split ring around the rod -lQ which is tightened by means of tightening screw upon a sleeve member 5l which' tits loosely arc-und the rod #LO within the split ring 52. Sleeve 54 has projecting forwardly from it a` flange or plate to which is screwed or otherwise. secured the edge turning plates 5G, which operate upon the principle well known in folding operations of this kind. the edge turning plates 56 are thus supported adjacent to the ends of the folder bar al?, so that as the web ot paper passes between them the edge of the web is turned upward and inward over the folder liar 4G. ln order to maintain the edge of the paper web iii this 'folded condition until it reaches the creuser rolls El? and 3l provide the holding lingers 57. which. are in tbc form oi' beni, wires oi' rods havingturned in lower ends fifa under which the edges ot' the web pass in the way to the creaser rolls. These retaining fingers arc mounted in sockets 51) 'which are secured to the split ringsi() ot iiiiedge turning device by screws or the like u() (scc ljigs. l and l2).

in order to'center the edge turning mechanian as a unit l provide aslceve or collar` "il which is secured to the rod -ll by screw il: or thc like and which has a lug li?) per `l'orated and threaded to receive the thriadd shait or bolt (il whirh has a bearing in one ci the trainee 38 and is held against length- These trames (see Figs. l, 3, l`

,lod l0 is held in adjusted wise mo vement therein by its operating head 65, and the retaining collar 66 as clearly shown in Fig. 12 of the drawinff. With the construction described it is thus apparent that by turning the adjusting bolt 64C thel rod t1 may be moved to the left or to the right, carrying with it as a unit the folder bar 426, the edge turning plates 56 and retaining fingers 57.

After the edges of the web have been turned over and pressed down to form the side crease the web passes to the fold opening device as illustrated in Fgsl, 2, 3 and 4l. This device is adjustably mounted upon a stay shaft 67, which is suitably fixed in side trames of the cutting mechanism to. be hereinafter described. Fixed upon the stay shaft 67 are upright bracket arms G8 in the upper ends of, which is secured the crossrod 69 upon which are mounted split rings 70 adjustably secured by tightening screws 7l and supporting the fold opening plates 72 in a suitable position to turn the-folded edges of the web slightly outward from the j main body. i

Mounted in the upright bracket arms 68 4immediately below the cross rod 69 is a rod or bar 7 3 upon which are adjustably secured the web spreading devices 74 and support- Iing rollers 75. The spreading devices 7 el are in the form of truncated cones, or approximately so, and their function is to receive the web as it leaves the fold opening plates 72 and maintain the edges of the web out from the body of the paper ina more or less flattened condition. The guide roll 76 is suitably mounted upon the stay shaft 67 below the spreading devices 74 and receives the web from them atthe completion of the fold opening and spreading operation. The paper which is thus restored to its original open condition, but which retains perinanentlythe crease near each edge, is then led to the edge cutting mechanism, which will now be described.

The side frames in which the cutting mechanism is mounted are shown at 77 and are mounted upon the inain side frames 3 of the machine. Mounted upon the side frames 77 are the upright arms 7 8 which are formed vat their lower portion with semiannular flanges 79 cooperating with semiannular flanges SO on t e side frames 77 to receivethe bearing sleeves 8l shown in Fig. E). The bearing sleeves 8l, as shown in Fig. 9, have interior shoulders and have jourlnaled in them the shouldered shaft 82 of the cutter cylinder. The cutter cylinder comprises in general the inner web supporting section 83 and the outer cutter sections 84. The cutter sections 84; are provided with cutting edges 85 which operate to cut away sections of the web along the edge as will hereinafter appeal'. Sections 83 and Sfl are adjustably positioned and secured upon the -nism to different widths.

shaft 82 by set screws or bolts such as 86, shown in Fig. 6, to adjust the cutting mecha- Adjustably securedupon bearing* sleeves 81 by their split ring portions 8 7 are the supportingstuds 88 which are set preferably in approximately vertical position. Upon the studs 88 are adjustably secured by means of their split ring portions 89 the yoles 90, in which are pvoted by their trunnions 91 the pressure roller .hembers 92. .integral with or suitably lvsecured to them are the spring :attachment `arios .93 .projecting upwardly from the tron-- nioiis 91. The upright arnis 78 above referred to are :perforated at their upper ends and serve as brackets or supports for-'spring securing hooks 94:, their inner ends being` hook shaped or looped to engage and hold the outer end 'of a retractile spring 95, the opposite end 'of which is secured tol the spring attachment arm 93 of the pressure' roller at the' op osite side of the machine. The-outer end o each spring securing hook 9d is threaded and passes through the perforation in the upper end of the upright arm 78, bein-g adjustably held therein by binding nuts 96, sothat the tensionV on the retractile spring V95 may be suitably. regulated. The effect of each retractile spring 95 .is thus to maintain its corresponding pressure yroller 92 agains t .the outer edge otlie cutter cylinder section 8e during .the

rotation of the latter. lt is Aapparent lthat the mounting of the pressure rollers 92 upon their `supporting studs 88 provides for ad.- justment both vertically and horizontally, solhat the pressure rollersinayhe set at the most effective ongle to the surface of th `land the trip finger 108, a compression cuttcrcylinder sections.

The effect of the pressure rollers in the operation of the machine is `to press the edges of the web against the cutting edges.

of lthe cutter sections so that' chips are more or less perfectly cut out from the web.v

described later, is formed into a 'succession of wide and narrow portions the wider serv.

ing as the front of the completed envelop and the narrower serving :is the hack and sealing flap'thereof, the edges of the wider portion which pro-ject beyond the line of the narrower portion serving as the envelop seains which are subsequently, in the progress of the manufacture, to be Iguinined and turned over upon the back of the folded blank or envelop unit.

f llhe cuttingr operation referred to usually re( uires a chip freeing device which serves to'breal out the chip should it be imperfcctly severed by the cutting mechanism. I therefore provide each of the cul-tei' sections 8-l with a rocking` lever 97 which is pivoted to a. shouldered screu- 98 threaded into the .end of the .eut-,ter section. chip freeing rocking lever 97 has its op-v era-ting end 99 held normally flush with or slightly belowtlie surface of the cutter sec tion at the advance-'end of the cutting edge 85 by means of areturn spring 100 attached 'to pin 101 carried by the cutter section Se. Theother end of the rocking lever v97 is provided with a post 102 upon which isy jouriufiled an antiffriction roller 103 project This ing away frein the end of the cutter secv tions into the plane of a suitably stationary tripping device so that at the proper time it will he vengaged .21nd, dueto the rotation of the .cutter section, will' cause the rocking lever 97to oscillate upon its .pivot and project the forward end 99 of :the rocking le-v ver out `beyond the surface ofA the cutter section carrying with it the advance end of tlieIchip whichis to be removed'. l.' prefer toniale the tripping device which operates the rocking lever adjustable. lSuch a construction is illustrated in Figs. 1, 3, il and 6. Extending across the machine and secured to the side frances 77 is a cross liar` 104t which isslotted at 105k to receive the securing bolt 10G of an L-shaped' bracket plate .107. `rivoted in the bracket plate 107 is the trip finger 108 which projects to-y ward the cutter cylinder and has at its., .end a lug 109, which is adjustably secured'A lby nieansvof bolt 110 and nut 111 so as to project into the pathof the post 192 on thev rocking lever 97. The trip finger 198 has 1a looped or perforated intermediate porilion lli)l (see Fig. 6) through which passes :a holt 113 which is threaded into the bracket plate 107. :Between the head of bolt 113 spring 11e is confined so that the trip iinger is resiliently held in a lowered position. .The pressure of the springs 114 may b e :adjusted by turning the bolt 1.13 as is'obvilllS.

Positioned above the cutter cylinder is a.

pair 'of chip vremoval rollers 115 and 116- =either or both of which may be driven by a suitablelpower connection. l`he function of :the rocking lever 9,7 is not only to free the forward end of the` chip fro-ni the'web, but

:also to direct it into the bight of the'chip |renioval rollers 115 and 116 so that the coingpletion of the chip freeing ,operation is effected by the chip removal rollers. .these func-tions in mind it will be apparent that it is desirable to be ableto-accurately wah- `adjust the actuation of the rocking lever 97,

.not only so as to propeiily hreak out. t-he end of the chip, but for ythe further purposev of properly directing the forward'fend of the chip to the chip removal rollers.' By

the construction illustrated in Fig. 6' the vexact timingr of the actuation of the rocking lever 97 may be regulated to a nicety so that, as illustrated in Fig. S, the rockinglever 97 will direct the end of the chip into the removal rollers and be released from its actuating trip linger in time to be withdrawn below the sui-tace ot the cutter cylin derbel'ore its forward end is carried into interference with the chip removal rollers.

By movingl the L-shaped bracket plates 107 l'the toward or away from the medial line ot the machine, the lever actuating mechanism may be adjusted to different sizes of en- -yelops to correspond with theadjijstment of the cutter cylinder sections.

hin the operation of the devices dc` 'scribed it sometimes occurs that a chip is may be relieved of such strain by the resilience of their support. An example of such a support is illustrated in Figs. 1, 3, fl, 10 and l1. Referring to these ligures it will be seen that at each side of the machine I mount upon the shouldered sleeve 8 an arm 11.7, which is secured in place by means of segment 118, and 'further supported by stud 119, which rests in a` perforation formed in the upright arins78, (sce Fig. 1). The upper ortion of the armslli' are provided with earings 120, which received the axle pins 121 on which are mounted the bearing lugs or ears 122, of a U-shaped frame 123. The frame 123 `is slotted ateither side, as indicated at 112i, and through this slot is passed a bolt 125, which is pivoted at 126, in a 4re-A cessed portion of the arm 117. A washer 127 surrounds the bolt below frame 12?, and between. this washer and the lock nuts 128, is confined a compression spring 129, which thus resiliently holds the frame in its normal position, the forward und of the frame then"i'esting against an underneath shoulder 130, formed on the arm 11T.

I have already stated that chip removal rollers 115 and 11G may either or both be driven by a suitable power connection. Preferably these rollersare so mounted that they may ir-,iove away from cach other upon the accumulation of waste on one or the other. Such a construction is illustrated in connection with resiliently mounted frame 123, just described. At either side ot' the resiliently mounted frame 123, is a bearing bracket 131, which is slotted'at 132, to receive the screw 133, which is threaded into the `trame 123, and by which the position of the bearing bracket 131 may be adjusted toward or away from the cutter cylinder above described. The lower chip re` moval roller 115, is journaled in the bearing bracket 131, and upon its reduced ends are mounted the plates 13 the upper ends ci? which, 135, are slotted to provide beat ings for the upper chip removal roller 116, which thus .rests by gravity against the lower roller 115. The plates 1231, are also slotted at 136, on an arc ot' a circle concentric with the axis of the lower roller 115, so that the plates may be turned upon such axisi of oscillation to move the upper chip removal roller toward or away from th cutter cylinder, and. be secured in an acl-y justed position by means 0:1 a set bolt 137, which passes into the side of the frame 128. With the construction illustrated it is thus apparent should the waste become entangled upon the chip removal rollers and thus tend to become wedged between the lower roller 115 and the cutter cylinder, Which might cause the breakage of some parts of the device, the frame 123 automatically yields and swings upon its axis formed by pins 121, Vaway from the cutter .cylinder thus reliev-` ing the pressure. rollers 115 and 116 are free to move away from each other by reason of the mounting At the same time the of the upper roller 116 in a slotbearing torined in the plate 134.

From the cutting mechanism and its related parts, just described, the web which has had the chips removed. from its edges, but which it still continuous is carried under a ,ejuide roller 138, mounted in the bearing '1.39, secured to the side frames, and delivered to the blank severing mechanism. illustrated in Figs. 1, 15 and 16. This mechanism comprises, in general, upperand lower rollers 14D and 14.1, mounted in bearing blocks 142 and 143, respectively, which are resiliently positioned in a slotted vertical frame 144,`and held in normal position by. means of a compression spring `1115, which may be adjusted by turning thescrew 146, which passes through cap nlate 147. The

upper roller 140 is provided with a V shaped knife 148, which coperates with lower roller 141 to sever the web into blanks on a V-shaped line transversely of the web, thereby formi ig; the sealing,r Hap at one endv of the blaze;` and the V-shaped end ot the envelop back at the other end of the blank. The blank severing rollers at the same time serve as transverse creasers and carrying mechanism for a subsequent operation. For this purpose the upper roller 1&1() is provided with transverse creaser blades 119, while the lower roller is provided with oscillating glippen-plates 150, whichare positioned in slots 151, formed on the :tace ot the lower roller 141. A sha ft 152 supports each gripper plate 150 and projecting trom the shaft is a spring attachment finger or pin 153, to which' is secured a return spring 154, fastened s151155, to the lower roller. An arm 15G, also projects from one end of each of the shafts 152, into the plane lthus severed into blanks, the advanced V- ends of which. must bevsubjected to an end trimming operation for clipping ofi" the corners. The feed of the Aprojecting free end of the blank is frequently attended with some 'ditticulty when the paper operated upon is especially' t/hin and flexible, or when envelops of the' larger sizes are being made. The air resistance to the freey and unsupported end ot the paper obviously tends to interfere with its proper travel to the end trimmer and consequently the speed at which the machine may be operated would ordinarily be limited by the ability 0f the paper by its stiiness to thus move against the, air resistance into the position which it is to occupy during the moment o' clipping off the corners.

My present invention provides an improved guide and auxiliary Jfeed device for assisting the tree end of the paper in its4 movement 'to the end trimmer. This guide or auxiliary feed device is in the form of a moving part upon which the free end of the paper may rest and with which it may be moved in the direction of the end trininier. (lbviously numerousform's of mechanism whether continuous as belt conveyers, rotary, oscillating or intermittent in ltheir motion might be employed a moving guide since the assistance required is all in thc saine direction and the subsequent withdrawal of the is effected positively by the lower roller 11171, which does not release the blank Jfrom its gripping blade until l after the removal of the paper from the end trimmer. r hereciprocating form of moving guide which 1 have shown in the accompanying drawings and shall now desc die will serve to illustrate the essential principle involved, but it is to beunderstood that the invention is not liinitedto this parlziculir form 'of inechanisn. fore'fecting these purposes.

rIhc ond trimmer and its associate parts yare all supported by cross bar 159, which has sl( ed end flanges 16() resting upon the supporting vflanges `161 of the arms-'162, which project rearwardly from the rear traineslf'lli, above described. A Screw 'lt-3 pas a lhrough slotted end flanges 160 and into tlie supj'iorting flanges 161 so thatthe cross bar 159 may be moved toward or away 1,iis,oia

'from the upper and lower rollers le() and 141. Secured in suitable position upon the back of the cross bar 159 is the stationary A pair of rock arms 170 and 171 fixed on rock shaft 169 cngage'by their slotted rear ends the moving cutter blade 172, which is guided by retaining plates 178 and 17/1, se-

cured upon the back of the supporting cross bar 159 by means of screws or the like 175. Rock shaft 155) has its rocking moti-on imparted to it by a rock arm 176, Vwhich is fixed to it and has pivoted in its upper end aI link 177, the bifurcated forward end ofv which straddles thesliaftof roller 1112 and has journaled in it an anti-friction roller 178 which operates in a cam groove 179 'formed on the face oli a disk 180, which is secured to the shaft. The form of the cam groove 179 is such 'that at theproper inoincnt the anti-friction roller 178 is given a rearward throw, which reciprocates the link 177, thereby rocking the rock shaft' 169 and momentarily depressing the movable cutter blade 172. Between. the rock arm 170 and guide plate 17? 1 secure on the cutter blade 172 a pair of plates 181 and 182 and similarly at the other side a pair of plates 183 and 181. At the ends of the cutter bar 172 I secure washers 185 and 186. 1n this way the moving cutter bar 172 is held accurately in place. v

r1`he guide for directing the end of the envelop blank to thc end trimmer just described is supported upon a slotted base plate '187 (see Fig. 18) which is suitably secured to a bracket or seat 188.y screwed to the :liront of cross bar 159. The inner or upper end oi? the slotted plate 187 preterably has integral with it a short, post'189 from which yinfojects a linger 190, the post 189 and finger 190 being in the medial line of the machine and" thusserving asa stop post for the il-shaped end of the paper when the latter arrives in position to be operated upon by the end trimmer. This upper end ot theslotted guide plate is disposed within a horizontal recess which eX- tends longitudinally of the cross bar 159, as illustrated in'Fig. 18.' vThe screw 191 inaysecure the stop post 1189 inthe cross bar 159, thefplay of bthe screw 191 within the cross bar permitting ot' a slight adjustment of the stop post so that the corners of the paper project over the stationary cutter blade 164-, during the cutting opera tion. The slotted guide plate 187 forms a' rest or support, upon which the guide serui'zal a sh lied end of a bell crank lever il hi' means olf a 'ont 195.V

- The bell crank is pivotcal in its bracket 1%, which ix: forward end is resilienll)r secnred hy return spring lll? to the arm M32,

ildjustalxiy secured Within slot 108 near the l'inn'aril end olf bell crank lever 194i is an anti-fritaion roller 199, which is held resilientiy againsly the face of a cain disk 2011?' :eci` on a shift 20L which is suit :dit` om :i in tl a 'trame workof the ma chine. in to oscitlato the bell cranlr lever 194i, 'which thus aliernately advances and withdraws the niovingi` raide plate 192, the operation being so timed as to have the moving guide plate 'dei to approach the end trimmer simultaneously with the 'free end of the envelop lil-anky lint at sligzghtly higher sp'eed. it will. be obs-(awed that the upper end of the movinf;- lQ'nide plate ibi, has a central recess which permits it to avoid the slop post lS.) at the njper portion of its travel. ,Fingers QOL se :ired on cross baz' iii) operate to de-A flect the ree end ol,E die paper down upon the moving- :froide plate lin?.

it, will lie understood that the operation ol,l the bottoni roller li after advancing the 'lree end of the sheet` inio position Vfor theA end trimmer to operate upon it, still retains it erip npon the-'blank by ils tran verse creas. r hai so than npon the continued mlzalion o'l` the inner roller lll in will operate to lonlde the blank on the transverse r ihn middle and carry it Alroni the amer pest the pionnier as has al4- rnrnlv leen e.\lpl-.ii|n\i in my earlier il. patein ahoxe referred lo.

from, ihn 'Einwir-:iier lll lhe blank lhlisv 'folded is delivered lo the senin l'ornlingr nievhanism indicated diagrraulmotivally at :Idil in hief. l ol' the dran'inffgs, where the ed s o( the blank are turned nier upon the. back along; *.he creases foi-:ned by the prey operation of thee-,ain Q is thusl liminary creaser mechanism. From the seam forming mechanism 203 the complete envelop is discharged on to the delivery wheel lili in accordance with' well known principles of operation.

l'he seam forming mechanism is ilh1sirated in Figs. 'L-l and Q5. This mechanism comprises in general. the upper and lower belts EMV, o, respectively, operating upon their respective rollers 20T, Q08, mounted in suitable adjustable li'alnes 209, 210 and folding plates 2li, 212. The frames .209 and ill() are mounted on a cross platel. 'lfhc envelop blank which has been gnnimed and transversely t'olded passes into the bight of the two pairs of carrying belts 20o, i306. by which it is advanced through `the folding plates Q11, 212, which turn over the edges on the creased lines to `forni the side seams. The seams are disposed upon the outside of the envelop back and pressed down by seam pressing rollers 2li, and 215, after which they are discharged onto the delivery wheel 204, as above referred to.

What lA claim is:

1.. In apparatus of the character described, the combination with means for 'forming a 'l'old along the edge of a continuous web; of plates or lingers for opening the fold thus termed, nie-ans for severing the web into blanks, and means for folding over the seams on the creased line formed by the edge creasing; device :2. In apparatus of the character described,

the combination with a prelin'iinary edge creasing means, operating upon the Continuons Weh to form a temporary fold, V[fold opening plates or fingers receiving the continuous web therefrom, and an edge cnt` ling mechanism operating upon the continnons web after the told is opened; oi' blank severing' and folding mechanism,` and means for turning over the edge ol the blank on :he creased line formed by the preliminary edge creasing n'ieans.

l. ln apparatus of thecharaeterdescribed, ihe combination with edge turning plates, and a Afolder bar against which the paper is held dnringrY the edge turning' operation; ol' ereasor rolls, fold retainingr lingers located hetween the 'folder bar and crease]- i'olls, and means for opening the folds thus formed. i

T. W'ILLAM lillCNAS'l. l'l'ritnesses:

l). [mii-:111cm7 N. (1mm. 

